Hectares to Square Kilometers
Convert hectares to square kilometers instantly. 1 ha = 0.01 km². Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert hectares to square kilometers
To convert hectares to square kilometers, divide by 100 (multiply by 0.01). The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
km² = ha × 0.01
Hectares to Square Kilometers conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| Hectares | Square Kilometers |
|---|---|
| 1 ha | 0.01 km² |
| 2 ha | 0.02 km² |
| 3 ha | 0.03 km² |
| 5 ha | 0.05 km² |
| 10 ha | 0.1 km² |
| 20 ha | 0.2 km² |
| 25 ha | 0.25 km² |
| 50 ha | 0.5 km² |
| 100 ha | 1 km² |
| 500 ha | 5 km² |
| 1,000 ha | 10 km² |
What is a hectare?
10,000 square metres, or about 2.471 acres. The global standard for farmland.
What is a square kilometer?
One million square metres. Used for city, park and lake areas.
The formula
km² = ha × 0.01
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the Hectares to Square Kilometers
- Type the number of hectares you want to convert.
- Read the result in square kilometers straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked square kilometers to hectares page.
Hectares to Square Kilometers — frequently asked questions
How many square kilometers are in a hectare?
One hectare equals 0.01 km². km² = ha × 0.01
What is the formula to convert hectares to square kilometers?
The formula is km² = ha × 0.01. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert square kilometers back to hectares?
Divide instead of multiplying: one square kilometer is 100 ha. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this hectares to square kilometers free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the hectares to square kilometers.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error